Fused- Or Bridged-ring-containing Reactant Other Than Solely As Cyclic Acid Anhydride Group Patents (Class 528/298)
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Patent number: 7205379Abstract: The present invention discloses a process for the preparation of a stabilized polyester that is low in the generation of aldehydes which comprises reacting one or more diacids with one or more diols in an esterification process, and/or one or more diesters with one or more diols in a transesterification process in the presence of an effective amount of a stabilizer selected from the group consisting of (a) a polyhydric alcohol which is for example poly(ethylene-co-vinyl alcohol), poly(styrene-co-allyl alcohol), maltitol, isomalt, sorbitol, xylitol, sucrose, mucic acid dibutylester, mucic acid di(phenyl-1-ethyl)ester, pentaerythritol or dipentaerythritol; (b) a compound of the formula II, which is for example di-iso-octyl-phosphinic acid; (c) a sterically hindered amine which is for example Tinuvin 123 or Tinuvin 622; (d) a polyacrylamide or a cationic acrylamide copolymer; or (e) a hydroxyamine and/or a nitrone.Type: GrantFiled: March 19, 2002Date of Patent: April 17, 2007Assignee: Ciba Specialty Chemicals Corp.Inventors: Dirk Simon, Dari Lazzari, Stephen Mark Andrews, Heinz Herbst
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Patent number: 7192538Abstract: An antistatic composition containing various types of polymers such as a polyamide, an aliphatic polyester, an elastomer thereof and a polyurethane elastomer, and a metal salt in specific amounts, and preferably, an antistatic composition in which an additive component such as an organic compound which has an —{O(AO)n}— group (A represents an alkylene group having 2 to 4 carbon atoms, and n represents an integer of 1 to 7) and all molecular chain terminals of which are CH3 and/or CH2 groups is compounded as needed.Type: GrantFiled: March 1, 2001Date of Patent: March 20, 2007Assignees: Sanko Chemical Industry Co., Ltd., Riken Technos CorporationInventors: Noriaki Fujihana, Yoshiharu Tatsukami, Masaki Enomoto, Ikuo Ohkoshi
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Patent number: 7193029Abstract: The present invention provides certain sulfonated copolyetherester compositions containing hydroxyalkanoic acids and processes for producing such sulfonated aromatic copolyetheresters. The invention further provides shaped articles, preferably in the shape of films, coatings and laminates, having improved thermal properties, wherein the shaped articles are produced from the certain sulfonated copolyetherester compositions. Some of these materials are also biocompostable. The sulfonated copolyetheresters are produced from a mixture of an aromatic dicarboxylic acid component, hydroxyalkanoic acid component, a sulfonate component, a poly(alkylene ether) glycol component, a glycol component, an optional other glycol component, an optional branching agent, and an optional color reducing agent.Type: GrantFiled: July 9, 2004Date of Patent: March 20, 2007Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard Allen Hayes
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Patent number: 7189441Abstract: The invention concerns polyester resins, more particularly polyethyleneterephthalate resins used for making hollow containers, such as bottles for packaging liquid substances, in particular aerated beverages, natural or mineral waters. The invention concerns a polyester comprising at least 92.5% in number of recurrent units derived from terephthalic acid of aliphatic diols having an intrinsic viscosity ranging between 0.45 dl/g and 0.70 dl/g, and an acetaldehyde content less than 3 ppm, preferably less than 1.5 ppm. The invention also concerns a method for obtaining polyester granules with low acetaldehyde content having an intrinsic viscosity in the range mentioned above. Said polyesters are used in particular for making hollow containers such as bottles and more particularly bottles designed to contain foodstuffs sensitive to acetaldehyde.Type: GrantFiled: July 11, 2002Date of Patent: March 13, 2007Assignee: Nestle Waters Management & TechnologyInventors: Gérard Denis, Murielle Vigny, Gérard Perez, Jean-Luc Lepage
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Patent number: 7173100Abstract: The present invention relates to a receiving-layer-forming polyester resin for use in a thermal-transfer image-receiving sheet, comprising: not less than 70 mol % of isophthalic acid and not more than 30 mol % of terephthalic acid as acid components; and not less than 30 mol % of diols having an alicyclic structure and not more than 30 mol % of ethylene glycol as diol components, and a thermal-transfer image-receiving sheet with a receiving layer formed on at least one of surfaces of the substrate sheet, in which the receiving layer is formed by such a receiving-layer-forming polyester resin.Type: GrantFiled: March 30, 2005Date of Patent: February 6, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventors: Naoyuki Mitsuyasu, Masayasu Yamazaki, Taro Suzuki, Minoru Takahashi, Hirotoshi Kizumoto
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Patent number: 7157525Abstract: The present invention relates to a thermoplastic elastomer resin which has good melt viscosity, melt tension, and thermal resistance, wherein it is prepared by introducing a chain extender and a stabilizer for hydrolysis to a thermoplastic elastomer resin produced through melt polymerization in the presence of hydroxy carboxylic acid compound and subjecting the mixture to reactive extrusion to increase the molecular weight and crosslinking degree of the elastomer resin. The thermoplastic elastomer resin according to the present invention has good properties for automobile parts, particularly constant velocity joint boots and bellows.Type: GrantFiled: December 17, 2003Date of Patent: January 2, 2007Assignee: Samyang CorporationInventors: Sung-Hwan Cho, Sun-Woong Kim, Jun-Hee Lee, Oh-Kwun Son, Byung-Ho Lim
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Patent number: 7144614Abstract: This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of this invention is a polyester polymerization catalyst comprising an aluminum compound and a phosphorus compound having a specific structure. Further, this invention relates to polyester produced by using this polyester polymerization catalyst and a process for producing polyester. Further, this invention relates to fibers, films and hollow molded articles comprising the polyester.Type: GrantFiled: July 2, 2002Date of Patent: December 5, 2006Assignee: Toyo Boseki Kabushiki KaishaInventors: Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu, Nobuo Moriyama, Mitsuyoshi Kuwata, Yoshinao Matsui, Seisyu Hayashi, Katsuya Ito, Masaou Matsuda
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Patent number: 7141627Abstract: An epoxy resin cured article has a high glass transition temperature and low dissipation factor. An epoxy resin composition from which the cured article can be having excellent solubility in solvents is used to produce the cured articles. A polyester as a curing agent of an epoxy resin composition having an aromatic polyhydroxy coumpound residue including an aryloxycarbonyl group at the molecule of the terminal, an aromatic polyvalent hydrocarbon group residue, and bulky structure, is used. Since the curing agent behaves as a polyfunctional curing agent, a cured article produced therefrom has a high crosslink density. Since highly polar hydroxyl groups are not formed during curing, a cured article has high glass transition temperature and a low dissipation factor. The cured article does not release low molecular weight carboxylic acids though hydrolysis of ester bonds at crosslinked bonds.Type: GrantFiled: October 27, 2003Date of Patent: November 28, 2006Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Satoshi Idemura, Masao Yamada, Koichi Fujimoto, Katsuji Takahashi
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Patent number: 7138481Abstract: A polyester resin prepared by polycondensing a dicarboxylic acid component containing terephthalic acid or derivative thereof with a diol component containing ethylene glycol through esterification or transesterification, thereby producing a melt polymerization polymer and subjecting the melt polymerization polymer to solid-phase polycondensation, wherein (1) the melt polymerization polymer contains comonomer units other than terephthalic acid units and ethylene glycol units in an amount of 5.5 or less, and whose intrinsic viscosity ranges from 0.08 dL/g to 0.50 dL/g and which has an apparent crystallite size smaller than 9 nm, and wherein (2) the melt polymerization polymer is subjected to solid-phase polycondensation at a temperature which is higher by at least 140° C. than the glass transition temperature of the melt polymerization polymer and is not higher than the melting point of the polymer to thereby obtain a polyester resin having an apparent crystallite size smaller than 9 nm.Type: GrantFiled: December 13, 2004Date of Patent: November 21, 2006Assignee: Mitsubishi Chemical CorporationInventor: Hitoshi Matsumoto
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Patent number: 7129301Abstract: A method for preparing a biodegradable copolyester includes: (a) optionally preparing an aromatic prepolymer by reacting a first aromatic dicarboxylic compound with a first aliphatic glycol; (b) reacting the aromatic prepolymer with a second aromatic dicarboxylic compound and a second aliphatic glycol so as to form a first reaction product; (c) reacting the first reaction product with an aliphatic dicarboxylic compound so as to form a second reaction product; and (d) performing polycondensation of the second reaction product.Type: GrantFiled: April 28, 2005Date of Patent: October 31, 2006Assignee: Far Eastern Textile Ltd.Inventors: Ru-Yu Wu, Chih-Wei Chu, Li-Ling Chang, Yi-Hsuan Tang, Ping-Sheng Lai
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Patent number: 7115686Abstract: A water-dilutable polyester resin ABCD having a mass fraction of from 1 to 10% of units derived from unsaturated cocondensed building blocks, an olefinic double bond content of from 10 to 2 000 mmol/kg, and a sulfonic acid group content of from 20 to 300 mmol/kg, modified if desired by copolymerizing olefinically unsaturated monomers in the presence of the polyester resin, a process for preparing them, and their use in particular in one-component coating compositions in combination with amino resin curatives.Type: GrantFiled: March 11, 2004Date of Patent: October 3, 2006Assignee: Surface Specialties Austria GmbHInventors: Gerhard Reidlinger, Johann Billiani, Rudolf Jedlicka, Ewald Zrin, Julius Burkl, Johannes Scherz
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Patent number: 7052764Abstract: A shaped article comprising poly[(trimethylene-co-dianhydrosugar ester) dicarboxylate] or poly(trimethylene-co-dianhydro-dicarboxylate having improved stability in the form of less change of Tg and reduced shrinkage upon storage at elevated temperature is disclosed.Type: GrantFiled: June 10, 2003Date of Patent: May 30, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Jing-Chung Chang, Joseph V. Kurian
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Patent number: 6979719Abstract: The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for making a bicyclo-orthoester-functional compound from the corresponding oxetane compound is described.Type: GrantFiled: February 22, 2000Date of Patent: December 27, 2005Assignee: Akzo Nobel N.V.Inventors: Klaus Hobel, Huig Klinkenberg, Arie Noomen
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Patent number: 6979492Abstract: A poly(trimethylene-ethylene ether) amide comprises a soft segment from poly(trimethylene-ethylene ether) glycol and a polyamide hard segment, preferably joined by ester linkages. The poly(trimethylene-ethylene ether) ester amides in accordance with the invention are particularly useful as shaped articles. The shaped articles are, preferably, prepared from fibers, fabrics or films.Type: GrantFiled: July 17, 2003Date of Patent: December 27, 2005Assignee: E. I. Du Pont de Nemours and CompanyInventor: Hari Babu Sunkara
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Patent number: 6916547Abstract: Novel multifunctional unsaturated polyester polyols, UV-curable top coat formulations including these polyols, and a one-step process for preparing these polyols, are disclosed. Surface coverings and surface covering components including these top coat formulations are also disclosed. The polyols are generally formed by the ring opening polymerization of a lactone with a compound of the formula (R1)aR(OH)b, where a+b>2. R1 is a double bond-containing moiety such as allyl, vinyl, vinylidene, vinyl ether, acrylate, and the like. R is generally an alkyl, aryl, aralkyl, alkaryl, ether or ester group, including substituted versions thereof. R can be a polymer, including polymers with a plurality of functional groups. Examples of lactone groups which can be used include caprolactone, lactide and glycolide.Type: GrantFiled: February 1, 2002Date of Patent: July 12, 2005Assignee: AWI Licensing CompanyInventors: Dong Tian, Jeff S. Ross
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Patent number: 6913806Abstract: A copolyester composition which includes polyethylene terephthalate (PET) is used to manufacture bottle embryos having weight greater than 600 grams and thickness greater than 7.0 millimeters. The copolyester composition of this invention is used to manufacture containers having an inner volume greater than 10 liters. The components of this copolyester composition are polyethylene terephthalate resin, X mole % of isophthalic acid (IPA), Y mole % of diethylene glycol (DEG) and Z mole % of 2, 6 napthalene dicarboxylic acid where X, Y, and Z conform to the following conditions: 2.5?X<6.0, 2.5?Y?5.0, 0?Z?5.0; and the copolyester composition has an intrinsic viscosity of between 0.75 and 0.85 dl/g.Type: GrantFiled: December 20, 2002Date of Patent: July 5, 2005Assignee: Nan Ya Plastics CorporationInventor: Zo-Chun Jen
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Patent number: 6914101Abstract: The present invention relates to a polyester block copolymer composition which is obtained by reacting 0.5 to 5.0 parts by weight of an epoxy compound (C) having two or more functionalities with 100 parts by weight of a polyester block copolymer (P) having an acid value of 0 to 5 mgKOH/g obtained by reacting a crystalline aromatic polyester (A) having a hydroxyl group at a molecular terminal with a lactone (B) and optionally with a polyfunctional compound (D) having three or more groups selected among carboxyl, hydroxyl, and/or ester groups thereof. The composition has such excellent moldability that it is applicable to molding techniques including blow molding without arousing any trouble. It is satisfactory in heat resistance, water resistance, impact resistance, or flame retardancy, and has rubber-like elasticity.Type: GrantFiled: April 1, 2002Date of Patent: July 5, 2005Assignee: Daicel Chemical Industries, Ltd.Inventor: Masanori Sakane
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Patent number: 6905765Abstract: A polyether ester comprises poly(trimethylene-ethylene ether) ester soft segment and alkylene ester hard segment. Preferably, the polyether ester is a thermoplastic elastomer in which the hard segment comprises C2 to C12 alkylene ester. The composition is prepared by providing and reacting: (a) poly(trimethylene-ethylene ether) glycol (b) at least one polyester. Fiber made from this composition is particularly useful in making films, membranes and fabrics.Type: GrantFiled: July 17, 2003Date of Patent: June 14, 2005Assignee: E.I. du Pont de Nemours and CompanyInventor: Hari Babu Sunkara
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Patent number: 6906116Abstract: An unsaturated polyester compound having an ethylenically unsatureated group in its terminal and hydroxymethyl group in its side chain is obtained by the reaction of (a) a compound containing at least two oxetane rings in its molecule with (b) a compound containing at least two carboxyl groups in its molecule and (c) an unsaturated monocarboxylic acid in the presence of a reaction promotor in such a proportion that the ratio of said compound (b) to said compound (a) falls in the range of 0.1<(b)/(a)<1. BY further reacting (d) a polybasic acid anhydride with the resultant unsaturated polyester compound (A?), there is obtained an actinic energy ray-curable resin which is soluble in an aqueous alkaline solution. A photocurable and/or thermosetting composition is obtained by mixing the unsaturated polyester compound (A?) and/or the actinic energy ray-curable resin with a polymerization initiator (B).Type: GrantFiled: August 14, 2003Date of Patent: June 14, 2005Assignees: Kanagawa University, Taiyo Ink Manufacturing Co., Ltd.Inventors: Tadatomi Nishikubo, Atsushi Kameyama, Masaki Sasaki, Masatoshi Kusama
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Patent number: 6881785Abstract: An aqueous dispersion based on an amorphous unsaturated polyester resin obtained by polycondensing a mixture of Dicidol isomers and one or more saturated and/or unsaturated dicarboxylic acids.Type: GrantFiled: December 22, 2003Date of Patent: April 19, 2005Assignee: Degussa AGInventors: Patrick Glöckner, Martina Ortelt, Werner Andrejewski, Alessandro Cerri, Lutz Mindach, Stephan Kohlstruk
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Patent number: 6863988Abstract: Monolayer packages comprised of an oxygen scavenging composition suitable for direct contact with package contents and recycle with other polyester bottles are disclosed. The oxygen scavenging composition is comprised of a modified copolymer which is comprised of predominantly polyester segments and an oxygen scavenging amount of oxygen scavenging segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. Use of these oxygen scavenging copolymers in bottles provides a clear and rigid monolayer bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolymers of this invention are over 99 wt % PET and contain less than 50 ppb of extractable components.Type: GrantFiled: October 25, 2001Date of Patent: March 8, 2005Assignee: BP Corporation North America Inc.Inventors: James M. Tibbitt, Paul J. Cahill, George E. Rotter, David P. Sinclair, Gary T. Brooks, Raymond T. Behrends
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Patent number: 6852388Abstract: The invention relates to a single- or multilayer, biaxially oriented film based on a crystallizable polyester and comprising at least one primary stabilizer for inhibiting oxidative degradation. The crystallizable polyester comprises from 100 to 10 000 ppm of primary stabilizer in covalently bonded form. The invention further relates to a process for producing the film.Type: GrantFiled: September 12, 2002Date of Patent: February 8, 2005Assignee: Mitsubishi Polyester Film GmbHInventors: Ursula Murschall, Ulrich Kern, Rainer Kurz, Holger Kliesch, Bodo Kuhmann
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Publication number: 20040266978Abstract: In a polyester production method, a titanium compound having a radical selected from a carbonyl group, a carboxyl group, or an ester group, and a phosphorous compound having a structure illustrated in Formula (I), are added.Type: ApplicationFiled: June 25, 2004Publication date: December 30, 2004Inventors: Keisuke Honda, Kunihiro Morimoto, Masatoshi Aoyama, Tatsuya Nagano, Minoru Fujimori
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Patent number: 6822054Abstract: A random polytrimethylene ether ester prepared by polycondensation of 1,3-propanediol reactant and about 10 to about 0.1 mole % of aliphatic or aromatic diacid or diester, as well as its manufacture and use thereof.Type: GrantFiled: July 31, 2003Date of Patent: November 23, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Howard C. Ng
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Patent number: 6818293Abstract: Disclosed are fibers and films prepared from polyesters of a dicarboxylic acid, preferably terephthalic acid, and a diol selected from 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, or 1,3-propanediol. The fibers and films contain a multifunctional epoxide additive and, optionally, an antioxidant, and show an increased dry heat stability when exposed to elevated temperatures in the presence of air while preserving excellent hydrolytic stability. Also disclosed is a process for stabilizing polyester fibers by melt blending a polyester and epoxide additive and melt spinning. The fibers and films are particularly useful in applications requiring elevated temperatures.Type: GrantFiled: April 24, 2003Date of Patent: November 16, 2004Assignee: Eastman Chemical CompanyInventors: Gerald Timothy Keep, William Alston Haile, Mark Elliott Tincher
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Patent number: 6818730Abstract: The present invention provides a process to produce isosorbide-containing polyesters. The process allows for higher isosorbide incorporation than previously found while maintaining high polymeric molecular weights.Type: GrantFiled: April 26, 2002Date of Patent: November 16, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles J. Brandenburg, Richard Allen Hayes
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Patent number: 6777099Abstract: Polyester films which comprise a stabilizer for inhibiting oxidative degradation, at least some of which has been covalently incorporated into the polymer chain of the polyester through polycondensation during formation of the polyester, have not only high resistance to oxidation but also very few surface defects and high stability during processing, and are suitable not only for use as a packaging material but for a wide variety of other technical applications.Type: GrantFiled: September 12, 2002Date of Patent: August 17, 2004Assignee: Mitsubishi Polyester Film GmbHInventors: Kazuo Tano, Ursula Murschall, Holger Kliesch
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Patent number: 6774203Abstract: The present invention provides a method for producing a liquid crystalline polyester which is produced from an aromatic carboxylic acid, an aromatic hydroxycarboxylic acid, an aromatic diol and/or an aromatic hydroxylamine, including a polymerization step (1) for producing a prepolymer of the liquid crystalline polyester and a solid-state polymerization step (2) for elevating the polymerization degree of the resultant prepolymer, the number of aromatic ring terminal groups of the prepolymer satisfying the following equation (i): [(the number of aromatic ring terminal groups)/[(the number of carboxylic terminal groups)+(the number of aromatic ring terminal groups)]]×100≧7(%) (i). According to the invention, all-aromatic type liquid crystalline polyesters can be produced within a short time and at low cost.Type: GrantFiled: May 17, 2002Date of Patent: August 10, 2004Assignee: Polyplastics Co., Ltd.Inventor: Yasuyuki Fukute
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Publication number: 20040152855Abstract: A composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of make-up and are capable of being applied to keratinous fibres, in particular to the nails, eyelashes, eyebrows and hair. In particular, these compositions can make it possible to obtain a film which exhibits good resistance to chipping, to impacts, to rubbing movements, to scratches and/or to pressing actions.Type: ApplicationFiled: January 17, 2003Publication date: August 5, 2004Applicant: L'OrealInventor: Nathalie Mougin
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Patent number: 6770414Abstract: The present invention provides an additive for a photoresist composition for a resist flow process. A compound of following Formula 1 having low glass transition temperature is added to a photoresist composition containing a polymer which is not suitable for the resist flow process due to its high glass transition temperature, thus improving a flow property of the photoresist composition. As a result, the photoresist composition comprising an additive of Formula 1 can be used for the resist flow process. wherein, A, B, R and R′ are as defined in the specification of the invention.Type: GrantFiled: June 11, 2001Date of Patent: August 3, 2004Assignee: Hynix Semiconductor Inc.Inventors: Min Ho Jung, Sung Eun Hong, Jae Chang Jung, Geun Su Lee, Ki Ho Baik
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Publication number: 20040122207Abstract: A copolyester composition of polyethylene terephthalate (PET) is invented to manufacture a bottle embryo having a weight of over 600 grams and a thickness of over 7.Type: ApplicationFiled: December 20, 2002Publication date: June 24, 2004Inventor: Zo-Chun Jen
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Patent number: 6746779Abstract: A copolyester having an inherent viscosity of equal to or greater than about 0.3 formed from about 20 to about 60 mole percent based on the amount of aromatic dicarboxylic acid of one or more of isophthalic dicarboxylic acid or an alkyl diester thereof, about 40 to about 80 mole percent based on the amount of aromatic dicarboxylic acid of one or more of terephthalic acid or 2,6-naphthalene dicarboxylic acid or an alkyl diester thereof, about 10 to about 60 mole based on the total amount of dicarboxylic acids of one or more aliphatic dicarboxylic acids or an alkyl diester, about 0.1 to about 5 mole percent based on the moles of total dicarboxylic acid of one or more alkali or alkaline earth metal salts of 5-sulfoisophthalic dicarboxylic acid or an alkyl diester thereof, about 90 to 100 mole percent based on the total amount of glycols of one or more aliphatic glycols, and 0 to about 10 mole percent based on the total amount of glycols of one or more of di(ethylene glycol) and tri(ethylene glycol).Type: GrantFiled: August 10, 2001Date of Patent: June 8, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Allen Hayes, Leonard Edward Kosinski
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Polyester having improved crystallization behavior and extrusion blow molded articles made therefrom
Patent number: 6740377Abstract: A PCT copolyester composition having at least about 70 mole % terephthalic acid and at least about 70 mole % 1,4-cyclohexanedimethanol and an inherent viscosity of greater than about 0.9 dL/g is prepared by solid state polymerizing a copolyester composition having a starting inherent viscosity of from about 0.4 to about 0.8 dL/g for a period of from about 1 minute to 100 hours and at a temperature of from about 140° C. to about 2° C. below the melting point of the copolyester to produce a copolyester having an inherent viscosity of greater than about 0.9 dL/g. Another aspect of the present invention is an extrusion blow molded article made from the copolyester prepared by the solid state polymerization process.Type: GrantFiled: September 12, 2002Date of Patent: May 25, 2004Assignee: Eastman Chemical CompanyInventors: Thomas Joseph Pecorini, Harold Eugene Dobbs -
Patent number: 6740402Abstract: Polyester fibers comprising a copolyester which simultaneously satisfies the following respective requirements (a) to (c), (a) a terephthalic acid component in an amount of 0 to 100 mol % and a 2,6-naphthalenedicarboxylic acid component in an amount of 100 to 0 mol % respectively based on the whole dicarbxylic acid component, wherein the total amount, of the terephthalic acid component and the 2,6-naphthalenedicarboxylic acid component, accounts for 90 mol % or more based on the whole dicarboxylic acid component, (b) a trimethylene glycol component accounts for 0 to 100 mol % and a 1,4-cyclohexanedimethanol component accounts for 100 to 0 mol % respectively based on the whole glycol component, wherein the total amount, of the trimethylene glycol component and the 1,4-cyclohexanedimethanol component, accounts for 90 mol % or more based on the whole glycol component and (c) the sum total value of mol % of the 2,6-naphthalenedicarboxylic acid component and mol % of the 1,4-cyclohexanedimethanol component is 2Type: GrantFiled: January 3, 2003Date of Patent: May 25, 2004Assignee: Teijin LimitedInventor: Ryoji Tsukamoto
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Patent number: 6737481Abstract: A polymer comprising poly(alkylene-co-dianhydrosugar ester) dicarboxylate and its preparation by reacting an alkylene diol, terephthalic acid, and a moiety of formula 1 X-Ia-(A-I)n-Ab-X Formula 1 wherein: A is the ester residue from an anhydrosugar alcohol or dianhydrosugar alcohol, I is the ester residue from a diacid or its dialkyl esters, X is H when linked to an A residue, OH when linked to an I residue derived from a dibasic acid, and OR when linked to an I residue derived from a dialkyl ester of the dibasic acid, R is a C1-C4 straight or branched chain alkyl group, a and b are independently 0 or 1, and n is 1 to 10 is disclosed.Type: GrantFiled: June 10, 2003Date of Patent: May 18, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Joseph V. Kurian, Yuanfeng Liang
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Publication number: 20040092703Abstract: This invention relates to a process for producing a polyester comprising the steps of:Type: ApplicationFiled: November 13, 2002Publication date: May 13, 2004Inventors: Ted Calvin Germroth, Sam Richard Turner, Lanny Calvin Treece
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Publication number: 20040068088Abstract: The present invention provides a process for the preparation of low styrene content resins prepared by first reacting an unsaturated carboxylic acid, its corresponding anhydride or mixtures thereof with a monohydric alcohol, DCPD and water and reacting the product of the first step with a polyol and optionally an oil containing unsaturation, its corresponding fatty acid or mixtures thereof.Type: ApplicationFiled: October 7, 2003Publication date: April 8, 2004Inventors: Roman Loza, Danny G. Hartinger
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Patent number: 6706396Abstract: The present invention provides processes for producing certain very low inherent viscosity polyesters. Also provided are the low inherent viscosity polyesters in discrete particulate form, and processes for producing the particulate polyesters. The discrete particulate materials are desirable for use in further processes.Type: GrantFiled: October 18, 2002Date of Patent: March 16, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Allen Hayes, Gregory W. Hoffmann
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Patent number: 6699545Abstract: This invention concerns a method for increasing the polymerization rate of polyester polymers in the solid state by adding a catalytic amount of zinc p-toluenesulfonate to a polyester polymer melt that is essentially free of antimony and germanium, before solid state polymerization.Type: GrantFiled: April 22, 2002Date of Patent: March 2, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Anju Parthasarathy
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Patent number: 6670429Abstract: A block copolyester comprises a hard segment and a soft segment, wherein the melting point of the copolyester is greater than or equal to 200° C., and the glass transition temperature of the copolyester is less than or equal to −40° C. The hard segment is preferably polyethylene terephthalate, polybutylene terephthalate, or polyethylene naphthalate. The soft segment is preferably formed from at least one dimer fatty acid and/or dimer fatty diol and/or equivalent thereof. The copolyester is especially suitable for use in automotive parts, particularly where thermal stability is required.Type: GrantFiled: December 31, 2002Date of Patent: December 30, 2003Assignee: Imperial Chemical Industries PLCInventors: Eric Appelman, Jeffrey Thomas Carter
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Publication number: 20030236385Abstract: Polyester films which comprise a stabilizer for inhibiting oxidative degradation, at least some of which has been covalently incorporated into the polymer chain of the polyester through polycondensation during formation of the polyester, have not only high resistance to oxidation but also very few surface defects and high stability during processing, and are suitable not only for use as a packaging material but for a wide variety of other technical applications.Type: ApplicationFiled: September 12, 2002Publication date: December 25, 2003Inventors: Kazuo Tano, Ursula Murschall, Holger Kliesch
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Patent number: 6663961Abstract: This invention is related to a process for preparing polyester polymers using a composite catalyst comprises the steps of 1) esterifying naphthalene dicarboxylic acid or a dicarboxylic acids containing NDCA or ester derivatives thereof, with ethylene glycol or glycols containing ethylene glycol or derivatives thereof to produce esterified compounds or its low molecular weight polymers; and then 2) continuously polycondensing the obtained esterification product to produce polyester polymers; and wherein the process includes using a composite polymerization catalyst which was prepared by reacting titanium compounds and cobalt compounds in the solution containing at least one alcohol. The process yields high quality polyester polymers having a good color and excellent physical properties. The process can considerably reduce both the esterification time and the polycondensation time.Type: GrantFiled: June 19, 2001Date of Patent: December 16, 2003Assignees: Oil Corporation, Korea Institute of Science and TechnologyInventors: Hyun Nam Cho, Sang Ho Bae, Il Seok Choi
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Patent number: 6660825Abstract: The present invention can provide a lactone polyester diol at least containing &egr;-caprolactone and a dibasic acid as constructing component units, and a polyurethane obtained using the diol and an organic diisocyanate can provide a spandex filament which is more excellent in a recovering ability of elasticity, strength, hydrolysis resistance, and heat resistance.Type: GrantFiled: July 15, 2002Date of Patent: December 9, 2003Assignee: Daicel Chemical Industries, LTDInventor: Toshio Endo
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Patent number: 6656577Abstract: The present invention is a process for making a low color copolymer of ethylene glycol, isosorbide and terephthalic acid or dimethyl terephthalate. This copolymer, poly(ethylene-co-isosorbide) terephthalate, is useful for making bottles, hot-fill containers, films, sheet, fiber, strand and optical article applications. It can also be used to make polymer blends and alloys.Type: GrantFiled: June 14, 2002Date of Patent: December 2, 2003Assignee: E. I. du Pont de Nemours & CompanyInventors: Douglas J. Adelman, Larry F. Charbonneau, Sophie Ung
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Patent number: 6656578Abstract: Provided is a process for producing an aromatic liquid crystalline polyester comprising the steps of: charging 80 20 mol % of a compound represented by the following formula (I) and 20 to 80 mol % of a compound represented by the following formula (II) into a reaction vessel; conducting polycondensation reaction at a temperature from 270 to 350° C. to produce a aromatic liquid crystalline polyester; discharging the aromatic liquid crystalline polyester in a molten state from the reaction vessel and solidifying; then, pulverizing the solidified polyester into particles; and heat-treating at a temperature from 200 to 310° C., The aromatic liquid crystalline polyester has improved low temperature molding processability, and the film thereof has sufficient heat-resistance and excellent gas barrier properties.Type: GrantFiled: September 11, 2002Date of Patent: December 2, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitaka Ohbe, Kazunori Akiyoshi, Shino Moriyama
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Publication number: 20030212244Abstract: This invention provides a new, biomass-derived glycol, bis(2-hydroxyethyl)isosorbide, which is found to be a valuable monomer for a wide variety of polymeric materialsType: ApplicationFiled: June 6, 2003Publication date: November 13, 2003Inventors: Richard Hayes, Charles Brandenburg
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Patent number: 6630564Abstract: To a copolyester reacted essentially by terephthalic acid components and ethylene glycol units, adding 1% to 15 weight % of specific diol unit selected from the group consisting of at least one of 2-butyl-2-ethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, 2,4-diethyl-1,5-pentanediol and hydroxypivalyl hydroxypivalate; or adding 0 to 1.0 mole % of mulfunctional group components consisting of at least one or more of trimellitic acid, trimellitic anhydride and trimethylol propane; and adding 0.01 to 0.5 weight % of compound represented by the following formula: can improve the color hue of the copolyester, and increase the reaction rate of the copolyester subjecting to solid phase polymerization, therefore improve the color hue of the shaped articles produced therefrom; furthermore, reduce the decline degree of the intrinsic viscosity after melt processing.Type: GrantFiled: December 21, 2001Date of Patent: October 7, 2003Assignee: Nan Ya Plastics CorporationInventor: Zo-Chun Jen
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Patent number: 6627303Abstract: Articles made from a thermoplastic resin composition comprising a high modulus fiber and a resorcinol polyester or resorcinol polyester carbonate resin showing high strength and stiffness along with surprisingly good retention of gloss and color when exposed to weathering.Type: GrantFiled: January 17, 2003Date of Patent: September 30, 2003Assignee: General Electric CompanyInventors: Robert R. Gallucci, Xiangyang Li, Paul D. Sybert
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Patent number: RE38928Abstract: A biaxially stretched polyester film for forming a container, characterized by being formed of a polyester substantially consisting of an ethylene terephthalate unit and an ethylene naphthalate unit, the refractive index in the direction of thickness of the film being 1.5 or greater. This film is not only excellent in the formability during formation into cans or the like, but has excellent properties in taste property, particularly, the taste property after the retorting, and may be suitably used for containers produced by forming process and, particularly, for metallic cans.Type: GrantFiled: May 15, 1997Date of Patent: January 3, 2006Assignee: Toray Industries, Inc.Inventors: Masahiro Kimura, Kohzo Takahashi, Hiroji Kojima, Koichi Abe
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Patent number: RE39222Abstract: A process for producing 2,6-dialkylnaphthalene from a hydrocarbon feedstock that contains at least one component selected from the group consisting of dialkylnaphthalene isomers, monoalkylnaphthalene isomers, polyalkylnaphthalenes, and naphthalene, is provided that includes the following steps: I. separating the hydrocarbon feedstock and/or a dealkylation product fed from step III into a naphthalene fraction, a monoalkylnaphthalene fraction, a dialkylnaphthalene fraction and a remaining products fraction; II. separating and purifying 2,6-dialkylnaphthalene from the dialkylnaphthalene fraction of step I; III. dealkylating the hydrocarbon feedstock and/or the remaining products fraction of step I and feeding the dealkylation product to step I; and IV. alkylating the naphthalene and monoalkylnaphthalene fractions of step I; wherein the hydrocarbon feedstock is fed to step I or step III.Type: GrantFiled: February 19, 2002Date of Patent: August 1, 2006Assignees: Kobe Steel, Ltd., Mobile Oil CorporationInventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul McWilliams, Susan Patricia Donnelly